buttons that don't register well

If you're having problems with the hardware of a DM41X or DM42, post about them here.
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tgray
Posts: 25
Joined: Fri Jul 28, 2017 3:36 am

buttons that don't register well

Post by tgray »

My 2 button misses a few presses now and then, particularly if I don't hit it just right or if I am doing multiple quick entries. I know others have had issues with other buttons.

Is this something that gets better with time and usage, or should I be popping the calculator open to do some cleaning?
Michael
Site Admin
Posts: 243
Joined: Wed Apr 05, 2017 11:31 pm

Re: buttons that don't register well

Post by Michael »

tgray wrote:
Tue Dec 19, 2017 4:34 pm
Is this something that gets better with time and usage, or should I be popping the calculator open to do some cleaning?
I'm not sure how fast this could get better on it's own.
If you're comfortable with the following procedure, this will help:
  • open the calculator
  • open the latch of the LCD connector and release the LCD flex ribbon
  • unscrew the two inner screws and remove the electronic board
  • lift up the foil partially and clean the contact area and the metal domes of the affected buttons. Use alcohol, acetone or nail polish remover
  • assemble the calculator and test it
gruensucher
Posts: 10
Joined: Thu Sep 28, 2017 9:05 pm
Location: Deutschland

Re: buttons that don't register well

Post by gruensucher »

gelöscht!
Last edited by gruensucher on Mon Sep 10, 2018 6:15 pm, edited 2 times in total.
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Walter
Posts: 1669
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: buttons that don't register well

Post by Walter »

gruensucher wrote:
Tue Dec 19, 2017 8:29 pm
Thomas! Thank you for this Tip!
Thomas?? Auf welchen Beitrag beziehst du dich??
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-35S, WP 34S, WP 31S, DM16L
gruensucher
Posts: 10
Joined: Thu Sep 28, 2017 9:05 pm
Location: Deutschland

Re: buttons that don't register well

Post by gruensucher »

gelöscht!
Last edited by gruensucher on Mon Sep 10, 2018 6:11 pm, edited 1 time in total.
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Walter
Posts: 1669
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: buttons that don't register well

Post by Walter »

gruensucher wrote:
Tue Dec 19, 2017 9:22 pm
Sorry, in my joy, I was Jeck !
:lol: Let's see whether Google can translate this (hint: gruensucher meant "jeck"). 8-)
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-35S, WP 34S, WP 31S, DM16L
Michael
Site Admin
Posts: 243
Joined: Wed Apr 05, 2017 11:31 pm

Re: buttons that don't register well

Post by Michael »

gruensucher wrote:
Tue Dec 19, 2017 8:29 pm
Please, not use aceton!
I've tried acetone, it's no problem at all.
gruensucher
Posts: 10
Joined: Thu Sep 28, 2017 9:05 pm
Location: Deutschland

Re: buttons that don't register well

Post by gruensucher »

gelöscht!
Last edited by gruensucher on Mon Sep 10, 2018 6:10 pm, edited 1 time in total.
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Walter
Posts: 1669
Joined: Tue May 02, 2017 11:13 am
Location: Close to FRA, Germany

Re: buttons that don't register well

Post by Walter »

gruensucher wrote:
Tue Dec 19, 2017 9:49 pm
I do not use acetone, preferably as a Teilereiniger (part-cleaner??).
@gruensucher: grrr gleichfalls! Woher soll ich wissen, was du hier meinst, wenn ich nur lesen kann, was du schreibst? :? :roll: Irgendwie widerspricht das dem, was du um 20:29 Uhr geschrieben hast. Oh, die Welt ist voller Rätsel! ;)

Trying to find out what was really meant by gruensucher. Most probably not what he wrote.
DM42 SN: 00041 Beta
WP 43S running on this device

HP-35, HP-45, ..., HP-35S, WP 34S, WP 31S, DM16L
gruensucher
Posts: 10
Joined: Thu Sep 28, 2017 9:05 pm
Location: Deutschland

Re: buttons that don't register well

Post by gruensucher »

gelöscht!
Last edited by gruensucher on Mon Sep 10, 2018 6:09 pm, edited 1 time in total.
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